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Product no.:30176

1 unit = 1 box

Size S: 24 pieces (about 20 - 30 mm)

Size M: 20 pieces (about 30 - 40 mm)

Origin: Pantanal, Brazil

Very clear calcite crystals (rhombs) shows double image refraction due to their high birefringence.

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size:
		S (24 pieces) Product no.: 30176-S
		M (20 pieces) Product no.: 30176-M